<template>
  <div>
    <button @click="isShow = !isShow">显示/隐藏</button>
    <transition name="hello" appear>
      <h1 v-show="isShow">你好</h1>
    </transition>
  </div>
</template>

<script>
  export default {
    name: "Test2",
    data() {
      return {
        isShow: true,
      };
    },
  };
</script>

<style scoped>
  h1 {
    background-color: greenyellow;
  }

  .hello-enter-active,
  .hello-leave-active {
    transition: 0.5s linear;
  }

  /*进入的起点，离开的终点*/
  .hello-enter,
  .hello-leave-to {
    transform: translateX(-100%);
  }

  /*进入的终点，离开的起点*/
  .hello-enter-to,
  .hello-leave {
    transform: translateX(0);
  }
</style>